Pulley guard and hanger



1931. \B. L. POLKOSNIK 1,820,322

' PULLEY GUARD AND HANGER Filed Oct. 23, 192

INVENTOR 5 UNlTEDfST ATES- BERNARD L. rorxosmKQor DERBY, GQjNNfECTiCUQlPfiLLEY GUARD Anb HA NG g' a A Application filed October 23, 192 8.seam-"m: mm?

This invention relates to pulley guards and supports, with specialreference to types used in "connection with single grooved sheaves forsupporting clothes lines and other small ropes or cords. An object ofthe present provide a simple but effective device of unusual strength,due to its design and absence of joints as in built-up or piecedconstruction.

A further feature is in the provision of hanger of unitaryconstruction,made in any exceptionally economical manner from a sheet of suitablematerial, substantially without waste. Another purpose is ,Figure 2 is,a plan vlew of one ofthe blanks as sheared from a sheet of the ma 7terial.

Figure is a planview df'the blank as flanged and pieced preparatorytobendingQ into the completed shape asshown in Fig ure 1.

y of metal, such for instance, as sheet steel, having the ductility andstrength required,-

over all length of duced.

' Theblank comprises a straight central v I element 6, cut diagonallyofthe sheet,'of

which it occupies the mid portion, and

formed at the ends of this element are arms Z8, of uniform length whichextend at right angles to the bar element 6 and in opposite directions;

' '50 All these elements are of uniform width t V 7 across. invention isto I I which s multaneously produce flanged edges to produce a unitaryhanger of pleasing appearance, readily formed andeasily assembled-With apulley. These objects are attained by the novel 20 design, combinationand arrangement of secured, as by spot welding, to the flats 16 Ingreater detail the drawingsshowin, Figure 2, a fragment of a sheet orstrip5 the width of the sheet being equal to the,

the zig-zag blank pro- T 1 pretedas illustrative rather than limitativeof the invention, of which embodimentsmay andlength and canbe shearedwithout pro-o 1 I ducing a kerf or waste of any kind, except smalltriangles at the endsof the arm's,g I which are finished at right anglessquarely These blanks are struck between dies 91() the former extending,at 11,along the adjacent edge of the "arm 7 and the flange 10, iscontinued at 12 along the adjacent side of thearm 8.

Similar flanges 13 and 14 are formed at the same time on the opposite,outer edges of the arms 7 and 8 respectively.

It is to be noted that the outer corners of the bar element 6, at theintersection of the arms 7- 8 are levelled leaving flats 15- 16, whichcontain central perforations '17- 18', and similar perforations 19-20are formed in the arms 7+8 near theirends,

If preferred, acentral groove 21 may be produced inthe barelement 6, thesame 7 tending to stifien the structure when given itsfinal shape, beingthen disposed at the V bight of the 'loop' 22 formed by bending the 1element to produce parallel sides 6-6. x

The arms '78' are similarly bent to produce loops; 7,' and 8-8, bringingthe per forations17-20 and 18+19 into register, whereupon the ends ofthe" arms 78 areand 15 respectively,thus providing a firm and rigidstructure of greatstrength and good appearance. V a When the pulley isto bev assembled it is entered between the sides of the framethusproduced and a spindlepin'passed through the alined pairs ofperforations to act as an arbor 'on which'the pulleymay freely f rotate.7 190 The foregoing description is to'be interstamped from a singlepiece of sheet metal 9 to present a central bar member having extensionsreaching in opposite directions at right angles from its ends, said barbeing bent to produce an open 100 extending up- Wardly and saidextensions eing looped to encompass the sides of the pulley, the freeends of said side lo ps being overlapped and ecured to the jun i n ofthe connected ends, and means to receive a pulley pivot through thedouble thickness of the end loops.

In testimony whereof I aifix my signature.

BERNARD 7L. roLKosNm.

